Re: [PATCH] memcg: oom: ignore oom warnings from memory.max

From: Tetsuo Handa
Date: Mon May 04 2020 - 11:44:25 EST


On 2020/05/04 23:57, Shakeel Butt wrote:
> On Mon, May 4, 2020 at 7:20 AM Tetsuo Handa
> <penguin-kernel@xxxxxxxxxxxxxxxxxxx> wrote:
>>
>> On 2020/05/04 22:54, Shakeel Butt wrote:
>>> It may not be a problem for an individual or small scale deployment
>>> but when "sweep before tear down" is the part of the workflow for
>>> thousands of machines cycling through hundreds of thousands of cgroups
>>> then we can potentially flood the logs with not useful dumps and may
>>> hide (or overflow) any useful information in the logs.
>>
>> I'm proposing a patch which allows configuring which OOM-related messages
>> should be sent to consoles at
>> https://lkml.kernel.org/r/20200424024239.63607-1-penguin-kernel@xxxxxxxxxxxxxxxxxxx .
>> Will that approach help you?
>
>>From what I understand, that patch is specifically for controlling
> messages to consoles. The messages will still be in logs, right?
>

Right.

If you want to control which OOM-related messages should be sent to syslog,
we could use similar approach.